Changelog

This page summarizes recent releases in plain language. For the full history, see CHANGELOG.md on GitHub.

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1.3.0 — June 2026

New

• Template Handoff — reactive pages register the HTTP-rendered template under a one-time token; WebSocket connect reuses it instead of re-running the route handler (guide)
• allowed_methods on responses — HTTP 405 responses include an accurate Allow header for the route

Changed

• Route visit tracking — recursion detection is scoped per HTTP request (ContextVar), not shared across the app instance
• WebSocket open payload — first connect sends handoffToken; later events omit full-page HTML (smaller messages)

Fixed

• False RecursionError between sequential requests to the same route or redirect
• Wrong status for disallowed methods — unsupported verb on an existing path returns 405, not 404
• Multi-method routes — one route per path with methods=['GET', 'POST', 'DELETE']; use update_route() to add verbs (duplicate path registration still raises RouteAlreadyExistError)
• Request / cookie isolation between concurrent clients (ContextVar)
• Dev reload noise from static assets; offline startup when no network (get_local_ip fallback)
• Element child order when mixing childs, content, and {{placeholders}}

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1.2.0 — March 2026

New

• Query parameters in routes — /login?session={session} injects query values into handlers (guide)
• File streaming — app.stream() for large uploads without blocking the server (guide)
• Static directories — restrict static file serving to declared folders via Pyweber('static') or app.static(...)
• Child navigation — first_child, last_child, next_child, previous_child, index
• include_uuid — hide internal UUIDs when exporting HTML
• Mobile QR code — optional QR when starting the dev server from CLI
• OpenAPI — multipart and octet-stream support for API testing

Changed

• Static files only served from registered asset directories
• Response.code removed — use status_code

Fixed

• Recursion error when running under Uvicorn
• CLI --route and config route ignored on startup
• None values on file inputs
• Query params no longer treated as path params in Swagger

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1.1.x — February 2026

New

• e.target and e.current_target — clearer event targeting (e.element deprecated)
• Input selection API — selection_start, selection_end, focus, blur, select, click, scroll_into_view
• WebSocket port auto-detection (same host/port as HTTP)

Changed

• License — MIT → Apache License 2.0 (Pyweber Technology)

Fixed

• Dynamic value rendering in elements
• LocalStorage sync issues
• WebSocket handshake on deployed sites

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1.0.x — Late 2025

New

• Template cache — stable element UUIDs per route/method
• Unified WebSocket manager — HTTP and WS on same address
• Hot reload for Python modules with project-aware module filtering
• getElement / getElements — replace deprecated getElementById, getElementByClass, getElementByUUID
• OpenAPI / Swagger at /docs
• TemplateDiff — incremental DOM updates over WebSocket
• Form components — InputText, InputFile, TextArea, etc.

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Documentation updates (2026)

Recent doc improvements (this site):

• Template Handoff — HTTP→WebSocket without re-running handlers
• Multi-method routing — GET/POST/DELETE on a single route, 405 behaviour
• Element model guide — childs, content, and {{placeholders}}
• Reactivity guide — e.update() and sessions
• Components and file streaming
• Deployment — ASGI and production checklist
• Corrected placeholder syntax ({{uuid}}, not {uuid})
• Removed references to deprecated element lookup methods

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Upgrade tips

From	Action
< 1.3.0	List every HTTP verb on one @app.route(..., methods=[...]); use update_route() instead of a second route on the same path
< 1.3.0	No app changes needed for Template Handoff — enabled automatically on reactive HTML pages
< 1.2.0	Replace Response.code with status_code
< 1.1.0	Prefer e.target over e.element
< 1.0.2	Use getElement(by=GetBy.ID, value='...') instead of getElementById
Any	Register static dirs with app.static() after 1.2.0